Smoking pipe



F. M. LINGO SMOKING PIPE March 5, 1940.

Filed June 21, 1938' ATTORN Y5 Patented Mar. 5, 1940 UNITED STATES PATENT G- FFi-CE SMOKING PIPE Frank M. Lingo, Columbus, Ohio Application June 21, 1938, Serial No. 214,946 1 Claim. (or. 1314222) My invention relates to a smoking pipe. It has to do, more particularly, with a novel type oipipe for smoking tobacco. I

Attempts have been made in the past to provide a suitable pipe having means for preventing the moisture from the mouth reaching the bowl of the pipe interfering with proper combustion of the tobacco, producing a deposit in the bottom of the bowl and alsoresulting in an unpleasant taste. Prior art pipes designed to overcome this disadvantage have consisted of a main bowl or body portion and a separate bowl or liner pipes, the liner has been removable. However,

no satisfactory simple means has been provided for locking the liner in position. It is desirable that the locking means be extremely simple and inexpensive and be of such a nature that although it will efiiciently lock the removable bowl or liner in position, the liner or bowl can bequickly and easily removed when desired.

One of the objects of my invention is to provide a smoking pipe which is so constructed that the moisture from the mouth of a person using the pipe will be prevented from reaching the chamber in which the tobacco is disposed and where combustion takes place.

Another object of my invention is to provide a pipe of the type indicated which embodies a main body portion or bowl having a removable bowl or liner disposed therein, and which is provided with simple and effective means for looking the liner in position but which can be readily operated to permit removal of the liner when desired.

The preferred embodiment of my invention is illustrated in the accompanying .drawing wherein similar characters of reference designate corresponding parts and wherein:

Figure l is a longitudinal section taken through a pipe made in accordance with my invention.

Figure 2 is a perspective view, partly broken away, showing the removable liner or bowl removed from the body portion and showing the stem removed from its socket.

Figure 3 is a perspective View showing a liner or bowl-of slightly different form.

Figure 4 is a vertical section taken through the composite bowl of the pipe substantially along line 4-4 of Figure 5 showing the liner illustrated in Figure 3 mounted therein.

Figure 5 is a plan view of the structure illus- I trated in Figure 4.

With reference to the drawing, in Figures 1 and 2 I have shown a pipe made in accordance with my invention. This pipe comprises a main.-.

body portion i'which includes a bowl member 2 having a shank 3 projecting therefrom.- This shank has a longitudinal passageway 4 extending therethrough and communicating at its inner end with the interior of the bowl 2 at the lower end thereof. The bowl 2 may be of annular cross section as shown having inwardly tapering or curved side walls 5 and a substantially flat bottom surface 6. However, the bowl may be of other shapes.

The bowl 2 is adapted to receive a separate removable liner or bowl 1 which has an outer surface corresponding in contour substantially to the contour of the inner surface of the bowl 2 so that it will fit snugly therein-J The upper portion 8 so that a shoulder 9 is formed which will rest on the upper edge of the bowl 2., Adjacent its lower end and on the exterior thereof, the member i is provided with an annular groove 2o end of the member 1 is provided with an enlarged I0 formed therein. When the member '1 is positioned in the bowl 2, the groove [0 will be at the same level as the passageway 4 and the inner end of the passageway 4 will communicaterwith the groove. A plurality of small outwardly. and downwardly directed ducts H arev provided for establishing communication between the interior of the removable bowl I and the groove Ill. The

body portion I. This stem has a reduced tubular inner portion l4 which fits snugly intothe passageway 4 formed in the shank 3. This stem has a passageway l5 extending therethrough. The inner end of the stem has a tongue 16 formed thereon which will project'into the groove I0 when the removable bowl I is mounted in posi. tion in the bowl 2 and when the stem I3 is properly positioned on the body portion l with the shoulder i! of the stem abutting the outer end of the shank 3. It will be noted from Figure 1 that since the tongue 16 projects into the groove ill, the bowl I will be securely locked in position in the bowl 2. Thus, when knocking the ashes from the pipe, there will be no danger of the These notches I2 extend from the removable bowl I dropping from the bowl 2. To remove the bowl or liner 1 from the bowl 2, it is merely necessary to withdraw the portion I4 of the stem thereby withdrawing the tongue I6 from the groove III.

In using this pipe, it will be apparent that the moisture from the mouth of the smoker will be prevented from reaching the interior of the removable bowl 1. Any moisture passing rearwardly through the stem I3 will pass into the groove I and will drop downwardly through the notches I2. Although the bowl I is entirely independent of the stem I3, a proper draft will be provided since the smoke will pass from the interior of the bowl I through the ducts I I, through groove I0 and will be drawn from the groove through the passageway I in the stem. If small particles of ash pass through ducts I I into groove I0, such particles will drop downwardly through notches I2, some of which are in alignment with the-ducts, and will not reach the stem.

In Figures 3, 4 and 5 I show a pipe of slightly different construction. In this form the body portion I and the stem are exactly the same as inthe structure previously described. However,

instead of having a groove Ill extending entirely around the removable bowl I provide a groove .Ina which extends only substantially half-way around the member Ia. As indicated in Figure 4, at each end of this groove I provide a duct I la for establishing communication between the interior of the bowl la and the groove Illa. Directly below each of the ducts I Ia is a vertically disposed notch I2a of V-shaped cross section which extends from the groove Illa to the lower end of the member la. The tongue I6 of the stem will extend into the groove Illa and will serve to lock the member Ia in position. Any

moisture entering the groove Illa will drop downwardly through the notches I2a. Furthermore, if small particles of ash drop through the ducts Ila, they will drop down through the notches I20. and will not pass to the stem.

It will be apparent from the above description that I have provided a smoking pipe having many advantages. Since the removable bowl is separate from the stem, no moisture from the mouth of the smoker will reach the bowl. Although the bowl is readily removable, it is efliciently locked in position by the projecting tongue carried by the stem. However, the bowl may be readily removed when desired for cleaning purposes or it may be replaced by a new bowl when it becomes burnt too much or becomes too strong.

Various other objects and advantages will be apparent from the preceding description, the drawing and the following claim.

Having thus described my invention, what I claim is:

A smoking pipe comprising a main bowl member, a removable bowl member disposed in said main bowl member, said main bowl member having an opening leading thereinto, a stem adapted to be slipped into and out of said opening and normally having one end extending into said opening, said removable bowl member having a horiz'ontally disposed groove formed in the exterior surface thereof in alignment with said opening, said stem having a tongue formed on its inner end projecting into said groove and adapted to contact a portion of the wall surface of the groove in order to lock said removable bowl member in position, and ducts extending through the wall of said removable bowl member and into said groove for providing communication between the interior of said removable bowl member and said stem, said tongue being adapted to cooperate with any portion of the groove abutting the tongue to constitute a lock therewith.

FRANK M. LINGO. 

